Take this IQ test: Spot the glass with more water in just 12 seconds In this puzzle, you’ll see four glasses, each holding different objects like scissors, a paperclip, a rubber, and a watch. Although ...
This optical illusion puzzle challenges participants to identify which of four glasses holds the most water, factoring in the displacement caused by various objects within each glass. The task ...
Fewer than one in five people pass this IQ test, thought to be the shortest in the world only three questions long ... If it takes five machines five minutes to make five widgets, how long would it ...